నైరూప్య

Backward surface plasmons in semi-infinite one-dimensional photonic crystals single negative metamaterials

Hadi Rahimi

Existence of backward electromagnetic surface waves at an interface separating a semiinfinite uniform left-handed metamaterial and a 1D photonic crystal composed of alternating layers of two kinds of single-negative (-negative and µ-negative) metamaterial is theoretically investigated. Dispersion characteristics of surface states are analyzed for two different cases of ENG-MNG and MNG-ENG layered periodic structures. It was demonstrated that in the presence of metamaterial, surface waves are sensitive to light polarization and there exist only backward TM-polarized (or TE-polarized) surface Tamm states depending on the ratio of the thicknesses of two periodic stacking layers.